Home / 21,550.24-29,732-12,116.80

Finding the Fourth Proportional to 21,550.24, 29,732 and 12,116.80

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Solution

The fourth proportional to 21,550.24, 29,732 and 12,116.80 is: 16,717.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.24 : 29,732 = 12,116.80 : x
  2. Step 2: Convert to fraction form
    21,550.24/29,732 = 12,116.80/x
  3. Step 3: Cross multiply
    21,550.24x = 29,732 × 12,116.80
  4. Step 4: Simplify right side
    21,550.24x = 360,256,697.60
  5. Step 5: Solve for x
    x = 360,256,697.60/21,550.24
  6. Step 6: Final answer
    x = 16,717.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.